Exchangeable Tip Drills

Supplier: Seco Tools Inc

Seco’s new generation of Crownloc Plus
exchangeable tip drills takes holemaking to the next level by increasing output and
decreasing machining costs. Crownloc Plus saves users money by incorporating several new features that yield high
quality holes with less tool inventory and no regrinding or resetting costs.

The line
includes options for drilling holes ranging from .472” to .787” in diameter with 3xD and
5xD cutting depths.
Featuring new optimized geometry with TiAIN coating, Crownloc Plus has enhanced
entering capabilities, as well as excellent chip evacuation and wear resistance in a
variety of materials, including stainless steels and superalloys. The line’s strong,
polished drill body design includes deep and wide flutes and a high-strength locking
interface.

For best results, Seco recommends using these exchangeable crowns with the
following holders: the Weldon DIN 1835 B/DIN 6535 HB, Type 5834 hydraulic chucks (for
cylindrical, -R1 shanks only) or Type 5603 shrinkfit holders (for cylindrical, -R1 shanks
only).
In terms of coolant mix, Seco recommends an emulsion mix between 6% and 8%;
however, when drilling in stainless steels, superalloys and high strength steels the
recommended mix is 10%.

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